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PCA9544APW - NXP

Description: TSSOP20: plastic, thin shrink small outline package;2.3V ~ 3.6V, 4.5V ~ 5.5V -40 to 85 °C 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body

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PCB Footprints
PCA9544APW - NXP PCB footprint - Small Outline Packages - Small Outline Packages - SOT360-1
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PCA9544APW - NXP  - 3D model - Small Outline Packages - SOT360-1
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PCA9544APW Details

  • Manufacturer Part Number:

    PCA9544APW

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Package Description:

    TSSOP-20

  • Pin Count:

    20

  • HTS Code:

    8542.39.00.01

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    NXP Semiconductors

  • YTEOL:

    7

  • Analog IC - Other Type:

    DIFFERENTIAL MULTIPLEXER

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • On-state Resistance-Max (Ron):

    55 Ω

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    COMMON OUTPUT

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.1 mm

  • Signal Current-Max:

    0.025 A

  • Supply Current-Max (Isup):

    0.03 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.3 V

  • Supply Voltage-Nom (Vsup):

    2.5 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    4.4 mm

PCA9544APW Frequently Asked Questions (FAQs)

  • The PCA9544APW can support I2C bus frequencies up to 400 kHz, but it's recommended to limit the frequency to 100 kHz for reliable operation.
  • Yes, the PCA9544APW can switch between multiple I2C buses with different voltage levels, but the voltage on the SCL and SDA pins must be within the specified range of 1.8 V to 5.5 V.
  • To ensure correct switching, the control pins (A0, A1, and A2) must be driven with a valid logic level (either high or low) before the I2C transaction. The control pins should be driven with a valid logic level at least 10 ns before the I2C clock signal.
  • The PCA9544APW can drive a maximum capacitance of 400 pF on the I2C bus. Exceeding this capacitance may result in signal distortion and errors.
  • Yes, the PCA9544APW can be used to isolate I2C buses with different clock domains, but the clock domains must be synchronized to ensure correct data transfer.

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PCA9544APW Overview

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About NXP

NXP Semiconductors is a leading manufacturer of semiconductor devices with a wide range of semiconductor solutions, including microcontrollers, sensors, connectivity solutions, power management ICs, and security solutions. These products are used in a variety of applications such as automotive, industrial automation, smart homes, mobile devices, and more. NXP Semiconductors is one of the world’s largest semiconductor companies and is headquartered in Eindhoven, the Netherlands.

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